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Rail transportation safety investigation R23D0011

The TSB has completed this investigation. The report was published on 14 May 2024.

Table of contents

Crossing collision

Réseau de transport métropolitain
Commuter train EXO 816
Mile 62.18, Canadian National Railway Company
St-Hyacinthe Subdivision
Saint-Bruno-de-Montarville, Quebec

View final report

The occurrence

On , EXO commuter train 816 on the Mont-Saint-Hilaire line was proceeding eastward at Mile 62.18 on the Canadian National Railway Company St-Hyacinthe Subdivision when it struck a stopped automobile at a public crossing in Saint-Bruno-de-Montarville, Quebec. The driver of the automobile was fatally injured.


Media materials

News release

2024-05-14

Investigation report: Fatal crossing collision in Saint-Bruno-de-Montarville, Quebec
Read the news release


Investigation information

Map showing the location of the occurrence




Investigator-in-charge

Photo of Luc Régis

Luc Régis joined the Transportation Safety Board of Canada (TSB) in 2019 as a Senior Regional Investigator with the Rail/Pipeline Investigations Branch.

Before joining the TSB, Mr. Régis gained considerable experience in the construction and maintenance of railway infrastructure, holding various supervisory positions within the Engineering Department at Canadian National Railway Company (CN) from 2009 to 2014. From 2014 to 2019, he worked at Transport Canada as a Railway Safety Inspector in the Quebec Region, and at Transport Canada’s Emergency Situation Centre (SitCen) as rail safety expert. He lives in Montreal, Quebec.


Class of investigation

This is a class 4 investigation. These investigations are limited in scope, and while the final reports may contain limited analysis, they do not contain findings or recommendations. Class 4 investigations are generally completed within 220 days. For more information, see the Policy on Occurrence Classification.

TSB investigation process

There are 3 phases to a TSB investigation

  1. Field phase: a team of investigators examines the occurrence site and wreckage, interviews witnesses and collects pertinent information.
  2. Examination and analysis phase: the TSB reviews pertinent records, tests components of the wreckage in the lab, determines the sequence of events and identifies safety deficiencies. When safety deficiencies are suspected or confirmed, the TSB advises the appropriate authority without waiting until publication of the final report.
  3. Report phase: a confidential draft report is approved by the Board and sent to persons and corporations who are directly concerned by the report. They then have the opportunity to dispute or correct information they believe to be incorrect. The Board considers all representations before approving the final report, which is subsequently released to the public.

For more information, see our Investigation process page.

The TSB is an independent agency that investigates air, marine, pipeline, and rail transportation occurrences. Its sole aim is the advancement of transportation safety. It is not the function of the Board to assign fault or determine civil or criminal liability.